1 files changed, 4 insertions, 0 deletions
diff --git a/README.md b/README.md
index e1ad557e..60e064ff 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,10 @@ End-users should set these environment variables to modify `bindgen`'s behavior
     - Examples:
         - Specify alternate sysroot: `--sysroot=/path/to/sysroot`
         - Add include search path with spaces: `-I"/path/with spaces"`
+- `BINDGEN_EXTRA_CLANG_ARGS_<TARGET>`: similar to `BINDGEN_EXTRA_CLANG_ARGS`,
+   but used to set per-target arguments to pass to clang. Useful to set system include
+   directories in a target-specific way in cross-compilation environments with multiple targets.
+   Has precedence over `BINDGEN_EXTRA_CLANG_ARGS`.
 
 Additionally, `bindgen` uses `libclang` to parse C and C++ header files.
 To modify how `bindgen` searches for `libclang`, see the [`clang-sys` documentation][clang-sys-env].